DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

MAC Filter

The MAC-address-based filtering allows forwarding and blocking traffic subject to the source and

destination MAC addresses.

!

MAC-address-based filtering is active only when the device is configured as a transparent

bridge (the Bridge mode).

On the

Configuration

tab, you can select the operating mode of the MAC filter. Select the

Allow

value from the

Action

drop-down list to allow traffic affected by the rules from the

MAC-

addresses

tab and block the other traffic. Select the

Deny

value from the drop-down list to block

only traffic affected by the rules from the

MAC-addresses

tab.

Figure 44. The

Firewall / MAC-filter

page. The

Configuration

tab.

To create a new rule, proceed to the

MAC-addresses

tab and click the

Add

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Figure 45. The

Firewall / MAC-filter

page. The

MAC-addresses

tab.

On the opened page, specify the needed parameters.

Figure 46. The page for adding a rule for MAC-address-based filtering.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Parameter

Description

Source MAC-address

The MAC address of the source host.

Destination MAC-address

The MAC address of the destination host.

Direction

Select a direction for which the rule will be applied.

Protocol

Select a protocol for which the rule will be applied. The

<Any>

value means any protocol from those displayed in the list.

Interface

Select a WAN connection (with the

Bridge

connection type

only) for which the rule will be applied.

Click the

Change

button.

To edit a rule for filtering, select the relevant rule on the

MAC-addresses

tab. On the opened

page, change the needed parameters and click the

Change

button.

To remove a rule for filtering, select the relevant rule on the

MAC-addresses

tab. On the opened

page, click the

Delete

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Control

This menu is designed to limit access to certain web sites.

URL Filter

On the

Control / URL-filter

page, you can specify restrictions on access to certain web sites.

Figure 47. The

Control / URL-filter

page. The

Configuration

tab.

To enable the URL filter, select the

Enable/Disable URL filter

checkbox on the

Configuration

tab, then select a needed mode from the

URL-filter

type

drop-down list:

•

Block listed URLs

: when this value is selected, the router blocks access to all addresses

specified on the URL-addresses tab;

•

Block all URLs except listed

: when this value is selected, the router allows access to

addresses specified on the URL-addresses tab and blocks access to all other web sites.

Click the

Change

button.

To specify URL addresses to which the selected filtering will be applied, go to the

URL-

addresses

tab and click the

Add

button.

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DSL-2520U

ADSL2/2+ Router with USB and Ethernet Ports

User Manual

Configuring via Web-based Interface

Figure 48. The

Control / URL-filter

page. The

URL-addresses

tab.

On the opened page, specify the needed parameters.

Figure 49. The page for adding an address for the URL filter.

Enter a URL address in the

URL-address

field, specify a port (as usual, you need to specify port

80 for HTTP), then click the

Save

button.

To remove an address from the list of URL addresses, select the relevant address in the table on the

URL-addresses

tab and click the

Delete

button.

To disable the URL filter, deselect the

Enable/Disable URL filter

checkbox on the

Configuration

tab, then click the

Change

button.

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